An approach to the LQG/LTR design problem with specifications for finite-dimensional SISO control systems
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866916971112562688 |
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| author | Mahinzaeim, Mahyar Mehran, Kamyar |
| author_facet | Mahinzaeim, Mahyar Mehran, Kamyar |
| contents | This is an expository paper which discusses an approach to the LQG/LTR design problem for finite-dimensional SISO control systems. The approach is based on the utilisation of weighting augmentation for incorporating design specifications into the framework of the LTR technique for LQG compensator design. The LQG compensator is to simultaneously meet given analytical low- and high-frequency design specifications expressed in terms of desirable sensitivity and controller noise sensitivity functions. The paper is aimed at nonspecialists and, in particular, practitioners in finite-dimensional LQG theory interested in the design of feedback compensators for closed-loop performance and robustness shaping of SISO control systems in realistic situations. The proposed approach is illustrated by a detailed numerical example: the torque control of a geared DC motor with an elastically mounted output shaft. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_14952 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | An approach to the LQG/LTR design problem with specifications for finite-dimensional SISO control systems Mahinzaeim, Mahyar Mehran, Kamyar Systems and Control This is an expository paper which discusses an approach to the LQG/LTR design problem for finite-dimensional SISO control systems. The approach is based on the utilisation of weighting augmentation for incorporating design specifications into the framework of the LTR technique for LQG compensator design. The LQG compensator is to simultaneously meet given analytical low- and high-frequency design specifications expressed in terms of desirable sensitivity and controller noise sensitivity functions. The paper is aimed at nonspecialists and, in particular, practitioners in finite-dimensional LQG theory interested in the design of feedback compensators for closed-loop performance and robustness shaping of SISO control systems in realistic situations. The proposed approach is illustrated by a detailed numerical example: the torque control of a geared DC motor with an elastically mounted output shaft. |
| title | An approach to the LQG/LTR design problem with specifications for finite-dimensional SISO control systems |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2507.14952 |